9. What happens to the partial pressure of oxygen in a sample of air if the temperature is increased?
It decreases
It stays the same.
It increases.
and
The change cannot be determined.

Calculate the number of moles of ethane in 100 grams

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.

How many moles are in 123.0 grams of kclo4?